// h1标题
h1 {
  text-align: center;
  background: #efefef;
  font-size: 20px;
  padding: 10px 0;
  border-top: 4px solid #ccc;
  box-shadow: 0 2px 5px rgba(black, .5);
  font-weight: bold;
  color: rgb(73, 73, 73);
}

page {
  background: #FAFAFA;
}
